金-银系列矿物的电子探针定量分析方法及其应用

THE QUANTITATIVE METHOD OF ELECTRON PROBE ANALYSIS OF Au-Ag SERIES MINERALS AND ITS APPLICATION

自然界最常见的金矿物是金-银系列矿物。作者利用电子探针显微分析仪,对我国的金-银系列矿物进行研究,取得了较好的效果。本文着重介绍电子探针定量分析方法和对50个样品的研究成果。样品分别取自我国各主要产金区的不同类型金矿床。研究结果表明,金-银系列的各亚种矿物在我国均有产出,金的含量由98.18％至微量。自然银和金银矿较为少见,自然金和银金矿则是最主要的工业矿物,几乎每个金矿床的样品中都普遍存在,不同类型的样品,金矿物所含的微量元素也有差异。

The most common gold minerals in nature are the minerals of gold-silver series.Using electron probe microanalyser, authors have studied these minerals in China and ob(?)ined satisfactory results.In this paper a quantitative method of electron probe analysis is introduced and results of fifty samples are reported.These samples have been collected from the gold deposits of different types in China.Investigation results show that all subspecies of gold-silver series minerals occur in China.The content of gold in these minerals varies from 98.18% to trace amount.Native silver and kustelite are rarely found.Gold and electrum are important industrial minerals.They are almost found in samples of each gold deposits.The minor elements contained in samples of diffrent types are different in various types of samples.